MESON Chess Problem Database
Problem Display
PID: 277640 (3B4/3p4/1p1kr1Rn/nP2N3/1P2K3/2p1N3/3q4/3Q2R1 w - - 0 1)
Moutecidis, Pavlos
Probleemblad, 1954
#2
9 + 8
SOLUTION
- SOUND
- Sets
- 1...Qxd1
- 2.Rxd1#
- 1...Qd3+
- 2.Qxd3#
- 1...Qd4+
- 2.Qxd4#
- 1...Qd5+
- 2.Qxd5#
- 1...Rf6
- 2.Rxf6#
- 1...Rxg6
- 2.Rxg6#
- 1...Sb3
- 2.Sc4#
- 1...Sc4
- 2.Sxc4#
- 1...Sc6
- 2.Sc4#
- 1...Sb7
- 2.Sc4#
- 1...Sg4
- 2.Sf5#
- 1...Sf5
- 2.Sxf5#
- 1...Sf7
- 2.Sf5#
- 1...Sg8
- 2.Sf5#
- 1...c2
- 2.Qxd2#
- 1...Qxd1
- Tries
- 1.Re1?
- 1...Qd3+
- 2.Qxd3#
- 1...Qd4+
- 2.Qxd4#
- 1...Qd5+
- 2.Qxd5#
- 1...Qxd1
- 2.Rxd1#
- 1...Rf6
- 2.Rxf6#
- 1...Sb3
- 2.Sc4#
- 1...Sc4
- 2.Sxc4#
- 1...Sc6
- 2.Sc4#
- 1...Sb7
- 2.Sc4#
- 1...Sg4
- 2.Sf5#
- 1...Sf5
- 2.Sxf5#
- 1...Sf7
- 2.Sf5#
- 1...Sg8
- 2.Sf5#
- 1...c2
- 2.Qxd2#
- 1...Rxg6!
- 1...Qd3+
- 1.Rf1?
- 1...Qd3+
- 2.Qxd3#
- 1...Qd4+
- 2.Qxd4#
- 1...Qd5+
- 2.Qxd5#
- 1...Qxd1
- 2.Rxd1#
- 1...Rf6
- 2.Rfxf6#
- 2.Rgxf6#
- 1...Sb3
- 2.Sc4#
- 1...Sc4
- 2.Sxc4#
- 1...Sc6
- 2.Sc4#
- 1...Sb7
- 2.Sc4#
- 1...Sg4
- 2.Sf5#
- 1...Sf5
- 2.Sxf5#
- 1...Sf7
- 2.Sf5#
- 1...Sg8
- 2.Sf5#
- 1...c2
- 2.Qxd2#
- 1...Rxg6!
- 1...Qd3+
- 1.Rh1?
- 1...Qd3+
- 2.Qxd3#
- 1...Qd4+
- 2.Qxd4#
- 1...Qd5+
- 2.Qxd5#
- 1...Qxd1
- 2.Rxd1#
- 1...Rf6
- 2.Rxf6#
- 1...Sb3
- 2.Sc4#
- 1...Sc4
- 2.Sxc4#
- 1...Sc6
- 2.Sc4#
- 1...Sb7
- 2.Sc4#
- 1...Sg4
- 2.Sf5#
- 1...Sf5
- 2.Sxf5#
- 1...Sf7
- 2.Sf5#
- 1...Sg8
- 2.Sf5#
- 1...c2
- 2.Qxd2#
- 1...Rxg6!
- 1...Qd3+
- 1.R1g2?
- 1...Qd3+
- 2.Qxd3#
- 1...Qd4+
- 2.Qxd4#
- 1...Qd5+
- 2.Qxd5#
- 1...Rxg6
- 2.Rxg6#
- 1...Rf6
- 2.Rxf6#
- 1...Sb3
- 2.Sc4#
- 1...Sc4
- 2.Sxc4#
- 1...Sc6
- 2.Sc4#
- 1...Sb7
- 2.Sc4#
- 1...Sg4
- 2.Sf5#
- 1...Sf5
- 2.Sxf5#
- 1...Sf7
- 2.Sf5#
- 1...Sg8
- 2.Sf5#
- 1...c2
- 2.Rxd2#
- 2.Qxd2#
- 1...Qxd1!
- 1...Qd3+
- 1.R1g3?
- 1...Qd3+
- 2.Qxd3#
- 1...Qd4+
- 2.Qxd4#
- 1...Qd5+
- 2.Qxd5#
- 1...Rxg6
- 2.Rxg6#
- 1...Rf6
- 2.Rxf6#
- 1...Sb3
- 2.Sc4#
- 1...Sc4
- 2.Sxc4#
- 1...Sc6
- 2.Sc4#
- 1...Sb7
- 2.Sc4#
- 1...Sg4
- 2.Sf5#
- 1...Sf5
- 2.Sxf5#
- 1...Sf7
- 2.Sf5#
- 1...Sg8
- 2.Sf5#
- 1...c2
- 2.Qxd2#
- 1...Qxd1!
- 1...Qd3+
- 1.R1g4?
- 1...Qd3+
- 2.Qxd3#
- 1...Qd4+
- 2.Qxd4#
- 1...Qd5+
- 2.Qxd5#
- 1...Rxg6
- 2.Rxg6#
- 1...Sxg4
- 2.Sf5#
- 1...Rf6
- 2.Rxf6#
- 1...Sb3
- 2.Sc4#
- 1...Sc4
- 2.Sxc4#
- 1...Sc6
- 2.Sc4#
- 1...Sb7
- 2.Sc4#
- 1...Sf5
- 2.Sxf5#
- 1...Sf7
- 2.Sf5#
- 1...Sg8
- 2.Sf5#
- 1...c2
- 2.Qxd2#
- 1...Qxd1!
- 1...Qd3+
- 1.R1g5?
- 1...Qd3+
- 2.Qxd3#
- 1...Qd4+
- 2.Qxd4#
- 1...Qd5+
- 2.Qxd5#
- 1...Rxg6
- 2.Rxg6#
- 1...Rf6
- 2.Rxf6#
- 1...Sb3
- 2.Sc4#
- 1...Sc4
- 2.Sxc4#
- 1...Sc6
- 2.Sc4#
- 1...Sb7
- 2.Sc4#
- 1...Sg4
- 2.Sf5#
- 1...Sf5
- 2.Sxf5#
- 1...Sf7
- 2.Sf5#
- 1...Sg8
- 2.Sf5#
- 1...c2
- 2.Qxd2#
- 1...Qxd1!
- 1...Qd3+
- 1.Rxe6+?
- 1...Kxe6
- 2.Rg6#
- 1...dxe6!
- 1...Kxe6
- 1.Rf6?
- 1...Qd3+
- 2.Qxd3#
- 1...Qd4+
- 2.Qxd4#
- 1...Qd5+
- 2.Qxd5#
- 1...Qxd1
- 2.Rxd1#
- 1...Sb3
- 2.Sc4#
- 1...Sc4
- 2.Sxc4#
- 1...Sc6
- 2.Sc4#
- 1...Sb7
- 2.Sc4#
- 1...Sg4
- 2.Sf5#
- 1...Sf5
- 2.Sxf5#
- 1...Sf7
- 2.Sf5#
- 1...Sg8
- 2.Sf5#
- 1...c2
- 2.Qxd2#
- 1...Rxf6!
- 1...Qd3+
- 1.Rxh6?
- threat
- 2.Sf5#
- 1...Qd3+
- 2.Qxd3#
- 1...Qd4+
- 2.Qxd4#
- 1...Qd5+
- 2.Qxd5#
- 1...Rf6
- 2.Rxf6#
- 1...Rg6
- 2.Rgxg6#
- 2.Rhxg6#
- 1...Rxh6!
- threat
- 1.Re1?
- Keys
- 1.Kf4!
- 1...Qd4+
- 2.Qxd4#
- 1...Rf6+
- 2.Rxf6#
- 1...Qxd1
- 2.Rxd1#
- 1...Rxg6
- 2.Rxg6#
- 1...Qd3
- 2.Qxd3#
- 1...Qd5
- 2.Qxd5#
- 1...Sb3
- 2.Sc4#
- 1...Sc4
- 2.Sxc4#
- 1...Sc6
- 2.Sc4#
- 1...Sb7
- 2.Sc4#
- 1...Sg4
- 2.Sf7#
- 1...Sf5
- 2.Sf7#
- 1...Sf7
- 2.Sxf7#
- 1...Sg8
- 2.Sf7#
- 1...c2
- 2.Qxd2#
- 1...Qd4+
- 1.Kf4!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 8
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- Q(a);N_SPINQ(a),OGATE,XQ(A)::R(B),XQ(a)
- Q(a);CHECK,OGATE::QAR(A),XQ(a)
- Q(a);CHECK,OGATE::QAR2(A),XQ(a)
- Q(a);CHECK,OGATE::QAR1(A),XQ(a)
- R(f);N_PINS(G),OGATEB::R(H),XR(f)
- R(f);N_PINS(G),N_SPINR(f),OGATE,XR(H)::R(B),XR(f)
- S(c);N_GUARD::S(C)
- S(c);N_GUARD::S(C),XS(c)
- S(g);N_GUARD::S(C)
- S(g);N_GUARD::S(C),XS(g)
- P(b);N_GUARD::QAR(A),XQ(a)
- Tries
- Try
- R(B);
- Vars
- Q(a);CHECK,OGATE::QAR(A),XQ(a)
- Q(a);CHECK,OGATE::QAR2(A),XQ(a)
- Q(a);CHECK,OGATE::QAR1(A),XQ(a)
- Q(a);N_SPINQ(a),OGATE,XQ(A)::R(B),XQ(a)
- R(f);N_PINS(G),OGATEB::R(H),XR(f)
- S(c);N_GUARD::S(C)
- S(c);N_GUARD::S(C),XS(c)
- S(g);N_GUARD::S(C)
- S(g);N_GUARD::S(C),XS(g)
- P(b);N_GUARD::QAR(A),XQ(a)
- Refutation
- R(f);N_PINS(G),N_SPINR(f),XR(H)
- Try
- R(B);
- Vars
- Q(a);CHECK,OGATE::QAR(A),XQ(a)
- Q(a);CHECK,OGATE::QAR2(A),XQ(a)
- Q(a);CHECK,OGATE::QAR1(A),XQ(a)
- Q(a);N_SPINQ(a),OGATE,XQ(A)::R(B),XQ(a)
- S(c);N_GUARD::S(C)
- S(c);N_GUARD::S(C),XS(c)
- S(g);N_GUARD::S(C)
- S(g);N_GUARD::S(C),XS(g)
- P(b);N_GUARD::QAR(A),XQ(a)
- Refutation
- R(f);N_PINS(G),N_SPINR(f),XR(H)
- Try
- R(B);
- Vars
- Q(a);CHECK,OGATE::QAR(A),XQ(a)
- Q(a);CHECK,OGATE::QAR2(A),XQ(a)
- Q(a);CHECK,OGATE::QAR1(A),XQ(a)
- Q(a);N_SPINQ(a),OGATE,XQ(A)::R(B),XQ(a)
- R(f);N_PINS(G),OGATEB::R(H),XR(f)
- S(c);N_GUARD::S(C)
- S(c);N_GUARD::S(C),XS(c)
- S(g);N_GUARD::S(C)
- S(g);N_GUARD::S(C),XS(g)
- P(b);N_GUARD::QAR(A),XQ(a)
- Refutation
- R(f);N_PINS(G),N_SPINR(f),XR(H)
- Try
- R(B);
- Vars
- Q(a);CHECK,OGATE::QAR(A),XQ(a)
- Q(a);CHECK,OGATE::QAR2(A),XQ(a)
- Q(a);CHECK,OGATE::QAR1(A),XQ(a)
- R(f);N_PINS(G),N_SPINR(f),OGATE,XR(H)::R(B),XR(f)
- R(f);N_PINS(G),OGATEB::R(H),XR(f)
- S(c);N_GUARD::S(C)
- S(c);N_GUARD::S(C),XS(c)
- S(g);N_GUARD::S(C)
- S(g);N_GUARD::S(C),XS(g)
- Refutation
- Q(a);N_SPINQ(a),XQ(A)
- Try
- R(B);
- Vars
- Q(a);CHECK,OGATE::QAR(A),XQ(a)
- Q(a);CHECK,OGATE::QAR2(A),XQ(a)
- Q(a);CHECK,OGATE::QAR1(A),XQ(a)
- R(f);N_PINS(G),N_SPINR(f),OGATE,XR(H)::R(B),XR(f)
- R(f);N_PINS(G),OGATEB::R(H),XR(f)
- S(c);N_GUARD::S(C)
- S(c);N_GUARD::S(C),XS(c)
- S(g);N_GUARD::S(C)
- S(g);N_GUARD::S(C),XS(g)
- P(b);N_GUARD::QAR(A),XQ(a)
- Refutation
- Q(a);N_SPINQ(a),XQ(A)
- Try
- R(B);
- Vars
- Q(a);CHECK,OGATE::QAR(A),XQ(a)
- Q(a);CHECK,OGATE::QAR2(A),XQ(a)
- Q(a);CHECK,OGATE::QAR1(A),XQ(a)
- R(f);N_PINS(G),N_SPINR(f),OGATE,XR(H)::R(B),XR(f)
- S(g);N_GUARD,XR(B)::S(C)
- R(f);N_PINS(G),OGATEB::R(H),XR(f)
- S(c);N_GUARD::S(C)
- S(c);N_GUARD::S(C),XS(c)
- S(g);N_GUARD::S(C),XS(g)
- S(g);N_GUARD::S(C)
- P(b);N_GUARD::QAR(A),XQ(a)
- Refutation
- Q(a);N_SPINQ(a),XQ(A)
- Try
- R(B);
- Vars
- Q(a);CHECK,OGATE::QAR(A),XQ(a)
- Q(a);CHECK,OGATE::QAR2(A),XQ(a)
- Q(a);CHECK,OGATE::QAR1(A),XQ(a)
- R(f);N_PINS(G),N_SPINR(f),OGATE,XR(H)::R(B),XR(f)
- R(f);N_PINS(G),OGATEB::R(H),XR(f)
- S(c);N_GUARD::S(C)
- S(c);N_GUARD::S(C),XS(c)
- S(g);N_GUARD::S(C)
- S(g);N_GUARD::S(C),XS(g)
- P(b);N_GUARD::QAR(A),XQ(a)
- Refutation
- Q(a);N_SPINQ(a),XQ(A)
- Try
- R(H);CHECK,N_SPINS(G),XR(f)
- Vars
- K(e);N_SPINQ(a),P-FLIGHT,S_CUTP(h),XR(H)::R(B)
- Refutation
- P(h);XR(H)
- Try
- R(H);
- Vars
- Q(a);CHECK,OGATE::QAR(A),XQ(a)
- Q(a);CHECK,OGATE::QAR2(A),XQ(a)
- Q(a);CHECK,OGATE::QAR1(A),XQ(a)
- Q(a);N_SPINQ(a),OGATE,XQ(A)::R(B),XQ(a)
- S(c);N_GUARD::S(C)
- S(c);N_GUARD::S(C),XS(c)
- S(g);N_GUARD::S(C)
- S(g);N_GUARD::S(C),XS(g)
- P(b);N_GUARD::QAR(A),XQ(a)
- Refutation
- R(f);N_PINS(G),N_SPINR(f),XR(H)
- Try
- R(H);XS(g)
- Threat
- S(C)
- Vars
- Q(a);CHECK,OGATE::QAR(A),XQ(a)
- Q(a);CHECK,OGATE::QAR2(A),XQ(a)
- Q(a);CHECK,OGATE::QAR1(A),XQ(a)
- R(f);N_PINS(G),OGATEB::R(H),XR(f)
- Refutation
- R(f);N_PINS(G),N_SPINR(f),XR(H)
- Try
- Actual
- K(E);N_SPINS(G),P-FLIGHT,P_SPINS(C)
- Vars
- Q(a);CHECK,N_PINS(C),OGATE::QAR2(A),XQ(a)
- R(f);CHECK,OGATEB::R(H),XR(f)
- Q(a);N_PINS(C),N_SPINQ(a),OGATE,XQ(A)::R(B),XQ(a)
- R(f);N_SPINR(f),OGATE,XR(H)::R(B),XR(f)
- Q(a);N_PINS(C),OGATE::QAR(A),XQ(a)
- Q(a);N_PINS(C),OGATE::QAR1(A),XQ(a)
- S(c);N_GUARD::S(G)
- S(c);N_GUARD::S(G),XS(c)
- S(g);N_GUARD::S(G)
- S(g);N_GUARD::S(G),XS(g)
- P(b);N_GUARD::QAR(A),XQ(a)
Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) &
CSS/Javascript (jQuery, Bootstrap & DataTables).